When human beings enter the class society, education will inevitably be branded with class. Who holds the leadership of education and who has the right to enjoy education depends on their status in society. Whoever grasps the ownership of the means of production and the state power can control the production of spiritual products and the leadership of school education. The ruling class in a certain political and economic system always controls the educational leadership through the promulgation and implementation of educational principles and policies, the formulation of educational objectives, the allocation of educational funds, the provisions of educational content, especially ideological education content, and the appointment and dismissal of teachers and educational administrators. The ruling class in the political and economic system must master the leadership of education and let education serve the class rule.

The times of education is reflected in the fact that all educational activities are carried out under the social background, which is bound to bear a profound brand of the times. Taking today's society as an example, the prosperity and development of a country cannot be separated from the development of science and technology and the construction and development of democratic politics. Science and democracy are not only the means to reconcile the contradiction between productive forces and production relations, but also the inevitable requirement put forward by the gradual development of the times. As a product of political economy, the instrumental characteristics of the reproduction of scientific knowledge and democratic construction of education essentially meet the requirements of the times.